13255444531 has 32 divisors (see below), whose sum is σ = 15713896320. Its totient is φ = 10947695616.

The previous prime is 13255444507. The next prime is 13255444537. The reversal of 13255444531 is 13544455231.

It is a cyclic number.

It is not a de Polignac number, because 13255444531 - 2⁷ = 13255444403 is a prime.

It is a super-2 number, since 2×13255444531² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13255444537) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5182705 + ... + 5185261.

It is an arithmetic number, because the mean of its divisors is an integer number (491059260).

Almost surely, 2^13255444531 is an apocalyptic number.

13255444531 is a deficient number, since it is larger than the sum of its proper divisors (2458451789).

13255444531 is a wasteful number, since it uses less digits than its factorization.

13255444531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2863.

The product of its digits is 144000, while the sum is 37.

Adding to 13255444531 its reverse (13544455231), we get a palindrome (26799899762).

The spelling of 13255444531 in words is "thirteen billion, two hundred fifty-five million, four hundred forty-four thousand, five hundred thirty-one".